--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5831207747 dns-udp-queries-received-ipv6: 722411126 dns-tcp-queries-received-ipv4: 139967329 dns-tcp-queries-received-ipv6: 20154993 dns-udp-responses-sent-ipv4: 5861943457 dns-udp-responses-sent-ipv6: 722574573 dns-tcp-responses-sent-ipv4: 138395562 dns-tcp-responses-sent-ipv6: 20140224